AC International 8200 Series Operation, Pre-Startchecks, CAUTION Seal Damage Hazard, Priming

OPERATION

WARNING: Unexpected Startup Hazard

Disconnect and lockout power before servicing. Failure to follow these instructions could result in serious personal injury or death, or property damage.

WARNING: Electrical Shock Hazard

Electrical connections to be made by a qualified electrician in accordance with all applicable codes, ordinances, and good practices. Failure to follow these instructions could result in serious personal injury or death, or property damage.

PRE-START CHECKS

Before initial start of the pump, make the following inspections:

a.Check alignment between pump and motor.

b.Check all connections to motor and starting device with wiring diagram. Check voltage, phase, and frequency on motor nameplate with line circuit.

c.Check suction and discharge piping and pressure gauges for proper operation.

d.Check impeller adjustment, see specific section for proper adjustment.

e.Turn rotating element by hand to assure that it rotates freely.

f.Check driver lubrication.

g.Assure that pump bearings are properly lubricated.

h.Assure that coupling is properly lubricated, if required.

i.Assure that pump is full of liquid (See Priming) and all valves are properly set and operational, with the discharge valve closed, and the suction valve open.

j.Check rotation. Be sure that the drive operates in the direction indicated by the arrow on the pump casing as serious damage can result if the pump is operated with incorrect rotation. Check rotation each time the motor leads have been disconnected.

WARNING: Rotating Components

Hazard

Do not operate pump without all guards in place. Failure to follow these instructions could result in serious personal injury or death and property damage.

CAUTION: Seal Damage Hazard

Do not run pump dry, seal damage may occur. Failure to follow these instructions could result in property damage and/or moderate personal injury.

PRIMING

If the pump is installed with a positive head on the suction, it can be primed by opening the suction and vent valve and allowing the liquid to enter the casing.

If the pump is installed with a suction lift, priming must be done by other methods such as foot valves, ejectors, or by manually filling the casing and suction line.

WARNING: Rotating Components

Hazard

Do not operate pump without all guards in place. Failure to follow these instructions could result in serious personal injury or death and property damage.

STARTING

a.Close drain valves and valve in discharge line.

b.Open fully all valves in the suction line.

c.Prime the pump.

NOTE: If the pump does not prime properly, or loses prime during start-up, it should be shutdown and the condition corrected before the procedure is repeated.

d.When the pump is operating at full speed, open the discharge valve slowly. This should be done promptly after start-up to prevent damage to pump by operating at zero flow.

OPERATING CHECKS

a.Check the pump and piping to assure that there are no leaks.

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